scholarly journals Effect of Low-level Laser Therapy With Different Locations of Irradiation on Postoperative Endodontic Pain in Patients With Symptomatic Irreversible Pulpitis: A Double-Blind Randomized Controlled Trial

2019 ◽  
Vol 11 (3) ◽  
pp. 249-254 ◽  
Author(s):  
Mandana Naseri ◽  
Mohammad Asnaashari ◽  
Elham Moghaddas ◽  
Mohammad Reza Vatankhah
Keyword(s):  
Laser Therapy ◽  
Low Level Laser Therapy ◽  
Control Group ◽  
Time Intervals ◽  
Double Blind ◽  
Effective Measure ◽  
Low Level ◽  
Low Level Laser ◽  
Level Laser ◽  
Irreversible Pulpitis

Introduction: This double-blind, placebo-controlled, clinical trial aimed to investigate the analgesic efficacy of low-level laser therapy (LLLT) with two different locations, and their comparison, in postoperative endodontic pain (PEP) levels in molars diagnosed with symptomatic irreversible pulpitis. Methods: Seventy-five patients with a molar tooth, diagnosed with symptomatic irreversible pulpitis, were divided into three groups of placebo, buccal only irradiation (BI), and buccal and lingual irradiation (BLI), with 25 cases being in each group. The participants received similar singlevisit nonsurgical endodontic treatments. Then, a sham laser was used in the control group instead of LLLT. Individuals in BI and BLI groups received 80-second irradiation on the buccal surface and 80-second irradiation on each of the buccal and lingual surfaces respectively. A laser with an 808 nm wavelength, power of 100 mW, a fiber diameter of 600 μm, and a dose of 70 J/cm2 was used. PEP was assessed using a 0-100 mm VAS 4, 8, 24, and 48 hours after the treatment. Results: BLI showed a significantly higher reduction of PEP compared to placebo in all time intervals of this study. BLI was significantly more effective than BI 8 hours after the treatment. However, intragroup differences between BLI and BI groups at other time intervals and between BI and placebo groups in all time intervals were not significant. The number of taken analgesics in the BLI group was significantly lower than the placebo group and was on a statistical borderline compared to the BI group. Conclusion: LLLT with BLI was an effective measure as a supplement to oral analgesics in the reduction of PEP compared to the placebo.

Assessment of healing of dental implant surgical site following Low-Level Laser Therapy using Bio-Clinical parameters: An Exploratory Study

2020 ◽  
Author(s):  
VARSHA PALLED ◽  
DR. JITENDRA RAO ◽  
DR. RAGHUWAR DAYAL SINGH ◽  
DR. SHUCHI TRIPATHI ◽  
DR. KALPANA SINGH ◽  
...  
Keyword(s):  
Laser Therapy ◽  
Test Group ◽  
Low Level Laser Therapy ◽  
Control Group ◽  
Clinical Parameters ◽  
Implant Stability ◽  
Low Level ◽  
Implant Stability Quotient ◽  
Low Level Laser ◽  
Level Laser

The purpose of this study was to evaluate whether Low-Level Laser Therapy (LLLT) improves the healing of the implant surgical site with clinical and biochemical parameters.Thirty patients with an edentulous space spanning a single tooth were selected. The patients were randomly allocated to two groups - the control group and the test group. The test group received laser energy at a power of 2J/cm 2 with a total of 4-6J energy over each implant. Clinical parameters (Implant Stability Quotient, probing index, modified sulcus bleeding index)and osteoprotegerin (OPG) were assessed at baseline and follow-up intervals (2 weeks, 6 weeks, and 3 months).The test group showed significantly higher implant stability quotient compared to thecontrol group at 2 weeks(57.93±3.95 and 35.67±3.08; p<0.01) and 3months(58.86±3.75 and 67.06±3.78; p<0.01). A significant rise in OPG levels of the test group(686.30±125.36pg/ml at baseline and 784.25±108.30pg/ml at 3months;p<0.01) was seen contrary to significant decline in the control group (839.50±249.08pg/ml at baseline,415.30±78.39pg/ml at 3months;p<0.01). Within the limitations of the study, the study suggests that the healing of peri-implant hard and soft tissues may be enhanced with the use of LLLT as an explicit modality during the post-operative period.

Doppelblinde, randomisierte, placebokontrollierte Low-Level-Laser Therapiestudie bei Patienten mit primärem Raynaudphänomen

VASA ◽  
2002 ◽  
Vol 31 (2) ◽  
pp. 91-94 ◽  
Author(s):  
Hirschl ◽  
Katzenschlager ◽  
Ammer ◽  
Melnizky ◽  
Rathkolb ◽  
...  
Keyword(s):  
Laser Therapy ◽  
Raynaud’S Phenomenon ◽  
Raynaud's Phenomenon ◽  
Low Level Laser Therapy ◽  
Double Blind ◽  
Double Blind Placebo ◽  
Low Level ◽  
Low Level Laser ◽  
Level Laser ◽  
Primary Raynaud’S Phenomenon

Background: No causal treatment of primary Raynaud’s phenomenon is available due to its unclear aetiology. Low level laser therapy (LLLT) is applied in a multitude of medical conditions often without sufficient evidence of efficacy and established mechanisms. To asses the effect of this therapy in patients with primary Raynaud’s phenomenon a randomised, double blind, placebo controlled cross over study was designed. Patients and methods: Absolute and relative frequency and intensity of vasospastic attacks during three weeks of either LLLT or placebo therapy and results of infrared thermography before onset and at the end of both therapy sequences were evaluated in 15 patients with primary Raynaud’s phenomenon. Results: Frequency of Raynaud’s attacks was not significantly affected by low level laser therapy. Compared to placebo a significantly lower intensity of attacks during laser irradiation was observed, but no transfer effect occurred. Additionally the mean temperature gradient after cold exposure was reduced after laser irradiation, while the number of fingers showing prolonged rewarming was unaffected. Conclusion: Though further studies are necessary to confirm these results we could demonstrate for the first time in a double blind placebo controlled clinical trial that low laser therapy is a potential candidate for an effective therapy of Raynaud`s phenomenon, although effects seem to be of short duration.

scholarly journals SHORT-TERM EFFICACY OF LOW-LEVEL LASER THERAPY IN PATIENTS WITH KNEE OSTEOARTHRITIS: A RANDOMIZED PLACEBO-CONTROLLED, DOUBLE-BLIND CLINICAL TRIAL

2011 ◽  
Vol 46 (5) ◽  
pp. 526-533 ◽  
Author(s):  
Vanessa Ovanessian Fukuda ◽  
Thiago Yukio Fukuda ◽  
Márcio Guimarães ◽  
Silvia Shiwa ◽  
Bianca Del Cor de Lima ◽  
...  
Keyword(s):  
Clinical Trial ◽  
Knee Osteoarthritis ◽  
Laser Therapy ◽  
Low Level Laser Therapy ◽  
Short Term ◽  
Double Blind ◽  
Low Level ◽  
Low Level Laser ◽  
Level Laser ◽  
Double Blind Clinical Trial

scholarly journals Low-Level Laser Therapy for Acute Neck Pain with Radiculopathy: A Double-Blind Placebo-Controlled Randomized Study

Pain Medicine ◽  
2010 ◽  
Vol 11 (8) ◽  
pp. 1169-1178 ◽  
Author(s):  
Ljubica M. Konstantinovic ◽  
Milisav R. Cutovic ◽  
Aleksandar N. Milovanovic ◽  
Stevan J. Jovic ◽  
Aleksandra S. Dragin ◽  
...  
Keyword(s):  
Neck Pain ◽  
Laser Therapy ◽  
Randomized Study ◽  
Low Level Laser Therapy ◽  
Double Blind ◽  
Double Blind Placebo ◽  
Low Level ◽  
Low Level Laser ◽  
Level Laser ◽  
Acute Neck Pain

ASSESSMENT ON RESULTS OF SURGICAL EXTRACTION OF  IMPACTED LOWER THIRD MOLARS WITH POSTOPERATIVE LOW - LEVEL LASER THERAPY

2018 ◽  
Vol 8 (6) ◽  
pp. 130-137
Author(s):  
Huong Nguyen Thi Mai ◽  
Tai Tran Tan ◽  
Khanh Hong Quoc
Keyword(s):  
Laser Therapy ◽  
Third Molar ◽  
Low Level Laser Therapy ◽  
Control Group ◽  
Low Level ◽  
Impacted Third Molar ◽  
Low Level Laser ◽  
Level Laser ◽  
Surgical Extraction ◽  
Wisdom Teeth

Background: The most frequently performed surgical procedure in dentistry is impacted third molar extraction with difficulty varies according to the location of the tooth. Laser therapy after surgery can accelerate cell and tissue reconstruction along with relieve post-operative pain. The objective of this study was to investigate the clinical and radiographic characteristics of impacted lower third molar and to evaluate the results of surgical extraction of impacted lower third molar with post-surgical low-level laser therapy (LLLT). Subjects and Methods: Clinical and radiographic data from 90 patients (average age 28.13 ± 5.38) subjected to a surgical extraction of lower third molar were pooled and divided randomly into 3 groups: group 1 received LLLT immediately after surgery intraorally, group 2 treated with LLLT immediately after the extraction extraorally. Patients received routine management with nonactivated laser were inserted in the control group. Assessments of pain, swelling and trismus level were carried out at 24, 48 hours and on the 7th day after surgery. Results: Correlation of wisdom teeth to ramus and adjacent teeth mainly type II (88.9%), type III accounted for 11.1%. Relative depth of wisdom teeth in the bone mainly position B (81.1%), position C (18.9%). Correlation of wisdom teeth axis to adjacent teeth: horizontal (58.9%), mesioangular impactions (40%) and distoangular impaction (1.1%). There were statistically significant decreases in the level of pain, edema and interincisal opening between the laser-treated groups and the control group on the 1st and 2nd postoperative day. Conclusions: Intraoral and extraoral post-surgical low-level laser therapy treatment was useful in reducing swelling, pain and trismus compared to placebo group in impacted third molar surgery. Key words: Impacted lower third molar, low- level laser therapy

scholarly journals Application of a Low-Level Laser Therapy and the Purified Protein from Natural Latex (Hevea brasiliensis) in the Controlled Crush Injury of the Sciatic Nerve of Rats: A Morphological, Quantitative, and Ultrastructural Study

2013 ◽  
Vol 2013 ◽  
pp. 1-11 ◽  
Author(s):  
Fernando José Dias ◽  
João Paulo Mardegan Issa ◽  
Mamie Mizusaki Iyomasa ◽  
Joaquim Coutinho-Netto ◽  
Ricardo Alexandre Junqueria Calzzani ◽  
...  
Keyword(s):  
Sciatic Nerve ◽  
Laser Therapy ◽  
Ultrastructural Analysis ◽  
Crush Injury ◽  
Low Level Laser Therapy ◽  
Control Group ◽  
Low Level ◽  
Injured Nerve ◽  
Low Level Laser ◽  
Level Laser

This study analyzed the effects of a low-level laser therapy (LLLT, 15 J/cm2, 780 nm wavelength) and the natural latex protein (P1, 0.1%) in sciatic nerve after crush injury (15 Kgf, axonotmesis) in rats. Sixty rats (male, 250 g) were allocated into the 6 groups (n=10): CG—control group; EG—nerve exposed; IG—injured nerve without treatment; LG—crushed nerve treated with LLLT; PG—injured nerve treated with P1; and LPG—injured nerve treated with LLLT and P1. After 4 or 8 weeks, the nerve samples were processed for morphological, histological quantification and ultrastructural analysis. After 4 weeks, the myelin density and morphological characteristics improved in groups LG, PG, and LPG compared to IG. After 8 weeks, PG, and LPG were similar to CG and the capillary density was higher in the LG, PG, and LPG. In the ultrastructural analysis the PG and LPG had characteristics that were similar to the CG. The application of LLLT and/or P1 improved the recovery from the nerve crush injury, and in the long term, the P1 protein was the better treatment used, since only the application of LLLT has not reached the same results, and these treatments applied together did not potentiate the recovery.

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